Device for forming joints in pipes or mains.



M. YARROW. DEVICE FOR FORMING JOINTS IN PIPES 0B MAINS.

APPLICATION FILED OCT. 2, 1907.

Patented Dec. 13,1910.

I I ll u UNITED STATES PATENT OFFICE.

MATTHEW YARIROW, 0F SMITHILLS, BOLTON, ENGLAND, ASSIGNOR T0 YARBOW AND COMPANY (BOLTON) LIMITED, 0F BOLTON, ENGLAND.

Specification of Letters Patent.

Patented Dec. 13, 1910.

Application filed October 2, 1907. Serial No. 395,567.

To all whom it may concern:

Be it known that I, MA'rrHEw YARROW, a subject of the King of Great Britain, and resident of 9 Ivy road, Smithills, Bolton, in the county of Lancaster, England, have in= vented a certain new and useful Improvement in Devices for Formin Joints in Pipes or Mains, of which the 0 lowing description, wherein reference is made to the accompanying sheets of drawings, is a specification.

This invention relates to an im roved method of and means for forming joints in pipes or mains and consists in so shaping or forming the outer or abutting ends of the pipes or mains that are to be jointed together that they will take within annular sleeves or rings made to receive them and in such a manner that cavities are formed between these parts for the reception of the jointing substances. To attain this object, use is made of the devices illustrated in the accompanying sheets of drawings wherein Flgure 1 is a plan or view as seen from above of my improved device with the ends of two pipes inserted therein. Fig. 2 is a cross sectlonal elevation on line A-B of Fig. 1. Fig. 3 is a longitudinal section of parts shown by Fig. 1. Fig. 4 is a sectional view showing a portion of the outer end of a pipe or main as formed for use in connection wlth my improved device. Fig. 5 is a sectional view showin the formation of my im roved device in etail.

imilar figures and letters of reference indicate similar parts throughout the several views.

In carrying my invention into effect the pipes or mains, which are to be jointed together have each two annular flanges 3, 4, formed on them to take within annular, sleeves or hoops 5 made to receive them. One hoop 5 is made to receive the two ends of the mains 2 which are to be jointed together. Within this sleeve or hoop 5 two annuiar grooves 6, 7 are formed to correspond with the two outer annular grooves 8, 8, formed between the flanges 3, 4 on the ends of the two pi es.

Adjoining t e annular grooves 6, 7 in the sleeve or hoop 5 are the internal flanges 9, 10 and 11 the two former of which have their inner surfaces grooved to fit over grooves made in the annular flanges 3, 4 on both of the mains 2 so that spaces of proper shape in cross section are provided for inserting calking or packing material 12 to form temporary joints adjoining the annular spaces which are to receive the liquid or semi-liquid sealing or jointing substance 13 afterward to be poured or run therein.

As means for forming the temporary joint between the two abutting ends of the pipes or mains 2, so as to provide against leakage of the jointing substance 13 in this direction an annular groove 14 is formed in the face of the end or extremity of the pipe 2 or in the flange 3 adjoining the same so that the temporary packing or jointing material 12 may be placed therein and retained between the two flanges 3 when these are placed together prior to the pouring in of the joint-forming I substance 13 so that this latter is or may be thereby retained.

Thesleeve or hoops 5 are formed with internally projectin pieces 15 for the flanges 3 on the ends of t e pipes 2 to rest upon to secure their alinement, and openings 16, 17 are formed in the hoops 5, so that the jointing substance may be oured through one of them while the air displaced by it may escape through the other until both annular spaces are filled and the joint properly formed, or only one or other of these openings may be made in said hoops 5 as the flowing of the jointing substance may be found to be effected through such sing e opening.

The flanges 4., and 9 and 10 are tapered or inclined, as shown and rounded toform annular openings 18 adapted to permit the insertion of a calking tool when the pipes and hoops are of metal, or to allow the admission of repairing material to faulty or weakened parts of such joints, as may from time to time be found necessary.

Such being the nature and object of my said invention, what I claim is 1. The combination with two pipe members having their ends in alinement and provided with flanges having coinciding grooves constructed to receive calking material, each of said pipe members bein also provided with a ta ered flange space from said first mentione flange, of a sleeve having interally beveled flanges cooperating with the tapered flanges of said pipe members, said sleeve being provided with a plurality of openings.

2. The-- combination with two.pipe members having their ends in alinement and prog a a 978,346

7 provided with rounded edges and cooperating with the tapered flanges of said pipev 1 members, the tapered flanges ofsaid sleeve 10 and the internally beveled flanges of pipe members being provided with annular vgrooves, said sleeve being provided with a plurality of openings.

In testimony whereof I have aflixed my signature 1n presence of two Witnesses.

MATTHEW YARROl/V.

-Witnesses SAMUEL HEY,

JOHN WHITEHEAD. 

